Chrysler 1997 Stratus Convertible RHD Service Manual page 494

8W - 30 - 22
DESCRIPTION AND OPERATION (Continued)
• Manifold absolute pressure sensor
• Throttle position sensor
• A/C pressure switch
• Crankshaft position sensor
• Vehicle speed sensor
• Heated oxygen sensors
FUEL INJECTORS
Circuit A14 is connected to the BUS bar in the
Power Distribution Center (PDC), and connects to
battery voltage. The contact side of the Automatic
Shut-Down (ASD) relay connects circuit A14 and
A142. A 20 amp fuse, in cavity 5 of the PDC, protects
circuits A14 and A142.
Circuit A14 also supplies voltage to the coil side of
the ASD relay. The Powertrain Control Module
(PCM) controls the ground path circuit for the coil
side of the ASD relay on circuit K51. Circuit K51 con-
nects to cavity 67 of the PCM.
Circuit A142 supplies voltage for the fuel injectors.
The PCM controls the ground circuit of each injector,
as follows:
• Circuit K11 is the ground circuit for Injector #1.
Circuit K11 connects to cavity 13 of the PCM.
• Circuit K12 is the ground circuit for Injector #2.
Circuit K12 connects to cavity 17 of the PCM.
• Circuit K13 is the ground circuit for Injector #3.
Circuit K13 connects to cavity 7 of the PCM.
• Circuit K14 is the ground circuit for Injector #4.
Circuit K14 connects to cavity 16 of the PCM.
On the 2.5L engine there are two additional injec-
tors used. The PCM controls the ground path for
these injectors as follows:
• Circuit K38 is the ground circuit for Injector #5.
Circuit K38 connects to cavity 15 of the PCM.
• Circuit K58 is the ground circuit for Injector #6.
Circuit K58 connects to cavity 14 of the PCM.
HELPFUL INFORMATION
Circuit A142 splices to supply voltage to the fuel
injectors, ignition coil, ASD relay, generator, and the
upstream and downstream (2.5L only) heated oxygen
sensors. The PCM controls the ground circuit for
each of the components powered by circuit A142.
The injectors operate in sequence. Refer to group
14 for system operation.
IGNITION COIL PACK (2.4L)
Circuit A14 is connected to the BUS bar in the
Power Distribution Center (PDC), and connects to
battery voltage. The contact side of the Automatic
Shut-Down (ASD) relay connects circuit A14 and
A142. A 20-amp fuse, in cavity 5 of the PDC, protects
circuits A14 and A142.
Circuit A14 also supplies voltage to the coil side of
the ASD relay. The Powertrain Control Module
(PCM) controls the ground path circuit for the coil
8W - 30 FUEL/IGNITION SYSTEM
side of the ASD relay on circuit K51. Circuit K51 con-
nects to cavity 67 of the PCM.
Circuit A142 supplies voltage for the ignition coil
pack. The coil pack consists of two individual coils
molded together. The PCM controls the ground cir-
cuit of each coil.
• Circuit K17 is the ground circuit for the ignition
coil that fires spark plugs #1 and #4. Circuit K17
connects to cavity 3 of the PCM.
• Circuit K19 is the ground circuit for the ignition
coil that fires spark plugs #2 and #3. Circuit K19
connects to cavity 2 of the PCM.
HELPFUL INFORMATION
Circuit A142 splices to supply voltage to the fuel
injectors, ASD relay, generator, and the upstream
and downstream heated oxygen sensors. The PCM
controls the ground circuit for each of the compo-
nents powered by circuit A142.
DISTRIBUTOR (2.5L)
The 2.5L V-6 engine uses a distributor. The distrib-
utor is used for firing the spark plugs and for provid-
ing camshaft position input to the Powertrain
Control Module (PCM). Circuit K44 is used to indi-
cate to the PCM camshaft position and connects to
cavity 33 of the PCM. Circuit K4 is used for the sen-
sor return to the PCM and connects to cavity 43.
The K19 circuit is an output from the PCM to the
distributor and is used for the coil driver. Grounding
for the distributor is provided on the Z1 circuit and
terminates at the left strut tower.
Battery voltage for the distributor is provided from
two sources, circuits A142 and K7. The K7 circuit is
the 8 volt output from the PCM. Circuit A142 is HOT
when the contacts in the Automatic Shut Down
(ASD) relay are CLOSED.
HELPFUL INFORMATION
• Refer to group 14 for system operation.
IDLE AIR CONTROL MOTOR
The Powertrain Control Module (PCM) operates
the idle air control motor through 4 circuits - K39,
K40, K59, and K60. Each circuit connects to separate
cavities in the PCM connector.
• Circuit K39 connects to cavity 57 of the PCM
connector
• Circuit K40 connects to cavity 48 of the PCM
connector
• Circuit K59 connects to cavity 58 of the PCM
connector
• Circuit K60 connects to cavity 49 of the PCM
connector
JX